Rivet-setting machine



RIVET-SETTING MACHINE Filed July 2o 1940' 4 Sheets-Sheet 1 z. ATTORNEY sfs. CRAMER I 2,259,296

RIVET-SETTING MACHINE Filed July 20, 1940 4 Sheets-Sheet 2 ATTORNEY RIVET-SETTING MACHINE Filed July 20, 1940 4 Sheets-Sheet 4 ATTORNEY s. s. CRAMER 2,259,296

Patented Oct. 14, 1941 STATES, PATENT OFFICE RIVET-SE'ITING MACHINE Stanley S. Crarner. Haddon Heights, Jr, as: signor of one-half to Elmer G. Van Name,

Application July 20, 1940, SeriaINo. 346,457

17 Claims. (pl. 218--0.5)

Thisinvention relates to-a' new and improved rivet-setting machine;

Wherea plurality of rivets, either of the solid or hollow type, is desired tobe simultaneously set. in one operatiorr-as is many times required i in, attaching one piece toanothermuch time and expense can be saved by utilizing a rivetsetting machine which set a plurality ofrivets simultaneously. In the majority ofrivetsetting machines-now on thermar-ket and in those with. which: I- amrfamiliar; separate machines are used for each spacing of rivets desired, because the anvil pins and driving mechanism are in a fixed center distance which cannot be changed.

It is, therefore; necessary for users of this type ofequipment to have aseparatemachine for each spacing. of the rivets, thusrequiring' a relatively large investment in rivet-setting equipment. It happens many times thatthese special machines are often used for only a few hoursin aweek, orat certain seasons of the year, hence to'substitute a very few adjustable center distance machines for alarge-number of fixed center distance: machines. will materially reduce the investment in setting equipment.

It is the principal object of my present invention to. provide ariveting machine which may be very quickly adjusted to rivet articles together, where different spacings of the rivets are required, and/or'diiferent.thicknesses of mate-- rial requiring a difference inthelength ofstroke for, thetwo-riyets, without the trouble and ex pense of making any additio'nalparts-bymerely adjusting the position ofcertain elements of the machine.

Another object of my invention is to provide a relatively. small and compact riveting machine which will attain the principal object at low initial cost of the entire machine.

A further. object of my invention is to. provide A.

in the use. of such structures to. be hereinafter A described.

In the drawings forminga part of this specification:

Figure 1" is a plan view. looking down on the machine, with the rivet-feeding and, setting 5;

mechanism. removed.

Figure 2 is a view on the line 22 of Figure 1. Figure 3 isa View on the line 3--3 of Figure 1.

, Figure 4 is a view on the line 4-4 of Figure 1.

right to left, with the central broken away. v

Figure 6 is a View on: the line 66 of Figure 2, certain parts beng omitted.

Figure 7 is a view on the line 1-1 of Figure 2.

Figures 8 and 9 are diagrammatic views showing how certain parts ofthe machine may be adjusted to accommodate the machine to diiTerent rivet spacings.

Figure 10 is aview of the left-hand portion of Figure 2, on an enlarged scale.

Figurell is a view of the rivet-setting parts only, looking-from left toright of Figure 10.

Figure 12 is a view on the line l2i 2 of Figure l0. 7 v

Figure 13 is: a diagrammatic View illustrating how two riveting operations may be performed simultaneously at different heights or on diiierent horizontal planes.

In the different views, wherein like numbers refer to corresponding parts, I is a standard which supports amain-framemember 2 having projections3 and 4' which, as shownin Figure 1, are preferably arcuate in shape. Pivotally sup ported between the projections: 3- and 4 are two plate-like members-5 and 6, each of which has arms- 1 and 8.- The. arm 1 of-the plate 5 is pivoted to the projection 3 by a stud 9, and the plate 6 is likewise pivoted to' the projection 3 by the stud Hi. The arms- 1- and- 8 of the plates 5 and 6- are connected to the projection 4 by somewhat similar studs or pins ll. 7

Carried on the outer end ofthe member 5 is a rivet-feedingand setting mechanism havinga rivet hopper I2, and. onthe member 6, a similar mechanism having a rivet hopper I 3. Each of the members or platesiand 6 also has levers l4 and I5 respectively. ,Each lever is operatively connected by itslinklt: and rod- I! with. a rivethopper mechanism, but since this rivet-hopper mechanism per se is no partof my present invention, further description does notseem to be necessary.

Eachrivet-hopper mechanism, for example l2, with its feed slide, which is back of the portion shown in Figures 2 and 10, is carried by suitable fastening. devices to the outer end of the plate 5, which has a, vertically disposed groove near its extremity to receive a rivet driver carrier 42-. The carrier 42 has across-slot 43 to receive the end N3 of the-lever I4. The carrier 42- also has a vertical slot 44 in which is positioned a rivetdrive pin 45. The carrier 42 has a slot 46 positioned in the bottom of the groove or channel 44 part of the flywheel Figure 5 is a view of. Figure 2 looking from ,5; to-receive setscrews 41. that screw into the rivetdrive pin 45 to assist in locking it in position after it has been adjusted by a set screw 48 carried by a stud 49 that is fastened to the carrier 42 after the slot or channel 44 has been milled or completed therein. Also, the set screw 48 is held in position by a lock nut and washer collectively referred to as 50. The plate or member has a slot I3 on the back side to receive one or more guide and holding studs III, which, for clarity, are not shown in Figure 10. The stud III has a large head and is threaded into 42 against a shoulder II so that the member 42 is held in slidable position on the plate 5. w

The lower end of the drive pin 45 terminates in a plunger point 5| adapted to engage a'rivet which is fed to the rivet holder 52, the rivet slide from the hopper I2 beingon the back-side of the part shown in Figure 10. but not shown in this view. However, it is to be understood that the rivets are automatically fed down from the hopper I2 through a suitable slide into the holder 52 formed to receive them.

The holder 52 is made up of two parts or split portions 53 and 54. 'The part 53 is carried by a strip 55 of spring material such as spring-steel. and, likewise, the half 54 of the holder is carried by' a spring member 56,the two springs being held as by screws 51 to a holding member 58 which is slidably mounted on the extremity of the plate 5, as is clearly shown in Figure 12. The holding member 58 has a slot 59 therein to receive a guide and holding stud 60 which is screwed into the end of the plate 5 to hold the member 58 in position thereon. The member 58 carries a strip 6| having a slot 62 therein, in which is positioned a set screw 63 which is screwed into the member 58 to lock the strip 6| in'any adjusted position. Fastened to the upper part of the member 58 is a flat member 64 carrying an adjusting screw 65 which is adapted'to contact with the upper face of the plate 5 at the point 66 to thereby limit the downward movement of the member 58 which is moved downwardly by the plunger 5| when it engages a rivet in the receiver 52. The upward movement of the member 58 is-limited by the upper end of the adjustable strip 6| engaging the head of the set screw 'or holding stud 60. The member 58 is moved'to return, that isyelevated, position, after a riveting stroke, by means of a spring 61 which is attached to some part of the hopper or'hopper support. V

Positioned below-the rivet holder'52 isan anvil 28 carrying a pin I9 used for locating the workpiece. The anvil '20, is adjustably-supported by an arm 4| on the lower-portion of the plate member 5, the adjustment being accomplished in anysatisfactory manner as by 'a-slot 68 in the arm 4|, and a set screw 69 threaded into the plate '5, whereby the anvil-2|| may be raised-andloweredto allow for various thicknesses of the parts to be riveted. F

Also, the drive pin 45, together with themem= ber 58 may be adjusted as heretofore described so that the plunger point 5| and rivet holder '52 will cooperate with theanvil for setting riveting parts, and so that'the parts associated with'plate 5 may be set to apply a rivet at a different height or into material of a different thickness thanthe corresponding parts carried by the plate 6, as'illlustrate'd in-Figure 13 which shows what may be referred was a step arrangement'of riveting.

Qn reference to Figures 1, 8 and 9, itiwill be seen that the plate-type members'5 and 6. with the mechanism which they carry, may be swung through a large arc, the ends 28 and 29 of the levers I4 and I5 operating in the arcuate recess 2! as will be more clearly seen from Figures 2 and 7. To hold the members 5 and 6 in this adjusted arcuate position, I use a slotted yoke 35 which is locked to members 5 and 6 by set screws 36 and 31 and this anchors the members 5 and 6 in their adjusted position, so that the anvils 20 may be quickly set to any desired arcuate position and distance apart. Because of the adjustment of the members 5 and 6, it will be readily understood that a pair of rivets may be simultaneously set at a great number of positions over a considerable range.

Extending from and supported by the main frame member 2, is a shaft 2| which carries a crank arm 22 which, in turn, is connected to a link 23 The link 23 is connected to a member 24 which is slidably mounted between the guide members 25 and 26, and constructed to move in a single vertical path by the gibs I2. The slide 24 has an arcuately formed recess 2T therein, and positioned within the recess 2! are the ends 28 and 29 of the levers I4 and I 5. The outer end of the shaft 2| carries a flywheel 39 which is held thereon by some fastening means 3|, it being understood that the flywheel 3|] rotates freely on the shaft 2I' and only turns it through the medium of a clutch to be later referred to. I The flywheel carries a belt or suitable drive member 32 connected to a pulley 33 of a motor 34 which is carried on the frame structure of the machine. I

It may be mentioned in passing that the machine is equipped with what I consider to be a new type of clutch mechanism controlled by a foot lever 38 acting on a control lever 39 and a clutch member 40 which is keyed to the shaft 2| and is adapted to engage the flywheel 39 at the will of the operator, the flywheel being automatically disengaged at the end of a rivet-setting-cycle. Since this clutch mechanism is the subject matter of a separate application, fur% ther description of the details does not appear to be necessary. 7

While I have shown the machine mounted on a standard or pedestal I, it is obvious that the frame member 2 may be arranged for bench mounting. Other changes in thedetails may be made without departing from the spirit of my invention orthe scopeof the appended claims.

What I claim is:

1. A rivet-setting machine including a main frame member, a pair of members pivotally mounted in spaced relation on said frame member, means engaging said pair of members for holding said pair of members in adjusted relative position with respect to each other, and each carrying rivet-feeding and setting'mecham'sms, each of said pair of members having a lever ro tatably carried thereon and means cooperative with said lever for operating the rivet-feeding and setting mechanisms, a power drive shaft carried by the frame member, and common means for drivingly connecting the shaft with both the levers, and power means for driving the shaft.

2. A rivet-setting machine including a main main frame member having projecting portions extending in the same direction from opposite ends of the frame member, a pair of plate-type members pivotally mounted in spaced relation on said projecting portions, a yoke extending across the plate members at one end thereof and having means cooperating with the plate memeg s- 296 bars for holding the plates in adjusted position, each plate having rivet-feeding and setting mechanisms carried thereon and a lever rotatably mounted on theplate and interconnected' with the rivet-feeding and setting mechanisms; a power drive shaft carried by the frame-member, and common means for drivingly connecting the shaft with both the plate levers and powerrnea'ns for driving the shaft;

3'; A rivet-setting machine including a main frame member having projecting portions extending inthe same direction from oppositeends of the frame member, a pair of plate-type'members pivotally mounted on their opposite'edges in spaced relation on said projecting portions, a slotted yoke across the plate members at their lower ends and locking positioning studs located in the slot of the yoke and engaging'theplate ends, each plate having a rivet-feeding mechanism carried thereon and a lever rotatably mounted on the plate and interconnected with the-rivet-feeding mechanism, a power drive shaft carried by the frame member; and common means for drivingly connecting the shaft with both the plate levers and power means-for driving the shaft.

4'. A rivet-setting machine including a main frame member, a pair of plate-type members pivotally mounted in spaced relation onsaid frame member, a yoke engaging said plates and having therewith cooperative means for holding the plates in adjusted" relative position with respect to each other, each platehaving a lever rotatably carried thereon, a rivet feed mechanism carried by each plate and-means cooperative with said lever for operating therivet-feedmechanism, apair of spaced guide-members carried by said frame member, a'member having an arcuately formed recess therein and located between said guide members, the ends of said levers being positioned in said recess, a power-driven shaft carried by the frame member and having a crank arm connection with the recessed member to raise and lower it as the shaft is turned, and power means for driving the shaft.

5. A rivet-setting machine including a main frame member, a Work table, a pair of spaced members pivotally mounted on the frame member and extending over the work table and each carrying a rivet-feeding and setting mechanism, a drive shaft extending through the frame member, a lever for each of said spaced members and pivoted thereon, and each having operative connection with the rivet-feeding and setting mechanism, and means interconnected between the shaft and one end of the levers for causing them to operate the feeding and setting mechanism.

6. A rivet-setting machine including a main frame member, a work table, a pair of spaced members pivotally mounted on the frame member and extending over the work table and each carrying a rivet-feeding and setting mechanism, a drive shaft extending through the frame member, a lever for each of said spaced members and pivoted thereon, and each having operative connection with the rivet-feeding and. setting mechanism, a pair of spaced guide members, a member having an arcuately formed recess positioned between the guide members and eccentrically connected with the shaft, the ends of said levers be ing located in said recess, and means for holding the said members carrying the rivet-setting mechanism at any desired angular position with in a considerable range.

7. A rivet-setting machine including a main frame-member, awork table, a pair of-spaced members; pivotally mounted on the frame meme ber and extending over the work table and each carrying a rivet-feeding and setting mechanism, and an anvil for the workpiece below said rivetfefedi'ng and-setting-mechanism, a drive shaft extending through the frame member, a lever for each-of said spaced members and pivoted thereon, and each having operative connection with the rivet-feeding and setting mechanism, and means interconneeted-betweenthe shaft and one end of the levers for causing them to operate the feeding and setting mechanism.

8.111 a rivet setting machine utilizing a rivetfeeding and setting mechanism, a frame member, 'a pair of members pivoted to the frame member so asto swing through a considerable angle, means=for anchoring the pivoted members in any arcuately adjusted position within said angular range; each pivoted member carrying a rivetfeeding and setting mechanism and a lever for operating it, a slidable member supported on the frame member and positioned to simultaneously operate both said levers, and means for moving said'slidable member up and down to actuate the rivet-feeding and setting mechanism.

9. In arivet-settingmachine utilizing a rivetfeeding and setting mechanism, a frame member, a pair of members pivoted tothe frame member so as. to swing through a considerable angle, means for anchoring the pivoted members in any arcuately adjustedpositionwithin said angular range, each pivoted member. carrying a rivetfeeding and setting mechanism and means for operating it, a pair of spaced guides, a member positioned between said guides and" adapted to slide up and-down therebetween and having an arcuate recess on one edge, the recess receiving the endsof said levers, a drive shaft eccentrically connectedto the member which slides, and an anvil carried by each of said pivoted members in cooperative relation to the rivet-feeding and set.- ting mechanism.

10. In a rivet-setting machine utilizing a rivetfeeding and setting mechanism, a frame member, a pair of members pivoted to the frame member so as to swing through a considerable angle, means for anchoring the pivoted members in any arcuately adjusted position within said angular range, each pivoted member carrying a rivetfeeding and setting mechanism and means for. operating it, and an anvil positioned below its rivet-feeding mechanism, a pair of spaced guides having inner guiding surfaces, a member having parts engaging said guiding surfaces and adapted to slide up and down thereon with means for holding said sliding member in position on said guides, said sliding member having a formation receiving the ends of both of said levers, and a drive shaft eccentrically connected to this member as and for the purpose described.

11. A rivet setting machine as set forth in claim 8, further defined in that each rivet-setting mechanism includes a driver carrier slidably supported on the pivoted member carrying it and having a cross-slot for the end of said operating lever, a driver pin adjustably carried by the driver carrier and terminating in a plunger point for engaging a rivet.

12. A rivet-setting machine as set forth in claim 8, further defined in that each rivet-feeding and setting mechanism includes a driver carrier slidably supported on the pivoted member carrying it and having a cross-slot for the end of said operating lever, a driver pin adjustably carried by the driver-carrier and terminating in a plunger point for engaging a, rivet, and a rivet receiver slidably carried adjacent the driver carrier at the end of the pivoted member carrying it, said receiver including a pair of relatively stifi but resilient members, each carrying at its free end a complementary part forming a receptacle for a-rivetin alignment with said plunger point.

'13. Arivet-setting machine as set forth in claim 8, further defined in that each rivet-feeding and setting mechanism includes a driver carrier slidably supported on the pivoted member carrying it and having a cross-slot for theend of said operating lever, a driver pin adjustably carried by the driver carrier and terminating in a plunger point for engaging a rivet, and a rivet receiver having a rivet receptaclein alignment with said plunger point, said receptacle being in two complementary parts, with means for resiliently holding them together but allowing them to be separated so the plunger point may force the rivet out of the receptacle into the workpiece positioned below the receptacle.

14. A rivet-setting machine as set forth in claim 8, further defined in that each rivet-feeding and setting mechanism includes a driver carrier slidably supported on the pivoted member carrying it and having a cross-slot for the end of said operating lever, a driver pin adjustably carried'by the driver carrier and terminating in a plunger point for engaging a rivet, and a rivet receiver having a rivet receptacle in alignment with said plunger point, said receptacle being in two complementary parts, with means for resiliently holding them together but allowing them to be separated so the plunger point may force the rivet out of the receptacle into the workpiece positioned below the receptacle, the rivet receiver being slidable along with the driver pin, with means for automatically returning it to starting position on withdrawal of the plunger point from the receptacle.

7 15. A rivet-setting machine including a frame member, members pivoted to the frame member so as to be arcuately movable, means for anchoring the pivoted members in any arcuately adjusted position within a suitable range, each pivoted member supporting a rivet hopper with means for feeding rivets therefrom, a rivet driver carrier and a driver pin adjustable on the carrier, a slidable rivet receiver having a receptacle for a rivet in alignment with the pin, with means for successively feeding rivets to the receptacle, the receptacle being expansible to allow the pin to force a rivet therethrough, levers for operating the slidable carrier and rivet-feeding means; and means for operating all of said levers on all of said pivoted members simultaneously, and an anvil positioned in alignment with each of the driver pins to receive the workpiece to be riveted together.

16. A rivet-setting machine including a frame member, members pivoted to the frame member so as to be arcuately movable to different vertical planes, means for holding the pivoted members in any stationary adjusted position within a suitable range, a rivet-feeding and setting mechanism carried on each of said pivoted members, and means for simultaneously operating all of said mechanisms.

- 1'7. A rivet-setting machine including a frame member, members pivoted to the frame member so as to be arcuately movable to different vertical planes, means for holding the pivoted members in any stationary adjusted position within a suitable range, a rivet-feeding and setting mechanism carried on each of said pivoted members, a single movable part carried by the frame and having levers operatively connected thereto for actuating the rivet-feeding and setting mechanisms, and power means for moving said single movable part.

STANLEY S. CRAMER. 

